A compact wilkinson power divider based on a gallium arsenide ipd process

Abstract

The application belongs to the technical field of radio frequency devices, and particularly relates to a compact Wilkinson power divider based on a gallium arsenide IPD process, which comprises an input port Port1, an output port Port2 and an output port Port3, a first radio frequency signal assembly is connected between the input port Port1 and the output port Port2, a second radio frequency signal assembly is connected between the input port Port1 and the output port Port3, the first radio frequency signal assembly and the second radio frequency signal assembly are the same in structure, and are connected in parallel between the first radio frequency signal assembly and the second radio frequency signal assembly. The compact Wilkinson power divider based on the gallium arsenide substrate IPD uses small-sized and low-power consumption lumped elements, divides one radio frequency signal into two radio frequency signals according to certain equalization, and realizes the performance of an operating frequency band of 6.0GHz-15.0GHz, an insertion loss (IL) less than 2dB, an input / output return loss (RL) greater than 10dB, and a two-port isolation greater than 15dB.

Description

Technical Field

[0001] This invention relates to the field of radio frequency device technology, and in particular to a compact Wilkinson power divider based on gallium arsenide IPD technology. Background Technology

[0002] A Wilkinson power divider is a passive device that splits an input signal into two or more outputs of equal or unequal power. Its main technical parameters include power loss (including center frequency), insertion loss, reflection loss, isolation between power distribution ports, and bandwidth. Power dividers are widely used in RF / microwave front-end communication systems, such as mixers, multipliers, power amplifiers, and antenna arrays.

[0003] To meet the ever-increasing demands of people for communication systems, broadband miniaturized power dividers are currently a research hotspot. In order to address the above problems through miniaturization and domestic substitution of RF devices, we propose a compact Wilkinson power divider based on gallium arsenide IPD technology. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a compact Wilkinson power divider based on gallium arsenide IPD technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A compact Wilkinson power divider based on gallium arsenide IPD technology includes: an input port Port1, an output port Port2, and an output port Port3. A first radio frequency (RF) signal component is connected between the input port Port1 and the output port Port2, and a second RF signal component is connected between the input port Port1 and the output port Port3. The first RF signal component and the second RF signal component have the same structure and are connected in parallel. Both the first and second radio frequency signal components include a first transmission line unit connected to the input port Port1. The first transmission line unit consists of a π-shaped circuit composed of an inductor L1, a capacitor C1, an inductor L2, and a capacitor C2. One end of the inductor L1 is connected to the capacitor C1, and the other end of the inductor L1 is grounded. One end of the parallel connection of the inductor L2 and the capacitor C2 is connected to the capacitor C1, and the other end of the parallel connection of the inductor L2 and the capacitor C2 is grounded. One end of the capacitor is also connected to an inductor L3, and the other end of the inductor L3 is connected to the output port Port2 and the output port Port3 respectively through the second transmission line unit. An isolation resistor unit is provided between the two sets of the first transmission line unit and the second transmission line unit.

[0006] In the aforementioned compact Wilkinson power divider based on gallium arsenide IPD technology, the compact Wilkinson power divider uses gallium arsenide as a substrate and operates in the frequency band of 6.0 GHz-15.0 GHz.

[0007] In the aforementioned compact Wilkinson power divider based on gallium arsenide IPD technology, the second transmission line unit consists of capacitor C3 (number 3), inductor L4 (number 4), and capacitor C4 (number 4). One end of capacitor C3 is connected to inductor L3, and inductor L4 and capacitor C4 are connected in parallel. One end of the parallel connection of inductor L4 and capacitor C4 is connected to capacitor C3, and the other end of the parallel connection of inductor L4 and capacitor C4 is grounded. One end of each of the two capacitors C3 is connected to output port Port2 and output port Port3, respectively.

[0008] In the aforementioned compact Wilkinson power divider based on gallium arsenide IPD technology, a first node a is provided between capacitor C1 and inductor L3 in the two sets of the first transmission line units, a second node b is provided between inductor L3 and capacitor C3, and a third node c is provided between capacitor C3 in the two sets of the second transmission line units and output port Port2 and output port Port3.

[0009] In the aforementioned compact Wilkinson power divider based on gallium arsenide IPD technology, the isolation resistor unit includes an inductor L5 connected between two first nodes a, an isolation resistor R1 connected between two second nodes b, and an isolation resistor R2, an inductor L6, and an isolation resistor R3 connected between two third nodes c.

[0010] In the aforementioned compact Wilkinson power divider based on gallium arsenide IPD technology, the compact Wilkinson power divider has an insertion loss of less than 2dB, an input / output return loss of more than 10dB, and an isolation of more than 15dB.

[0011] Compared with existing technologies, the advantages of this compact Wilkinson power divider based on gallium arsenide IPD technology are: This invention employs miniaturized and low-power lumped elements, specifically a gallium arsenide substrate-based IPD compact Wilkinson power divider, to split one RF signal into two RF signals in a certain equal manner. This power divider achieves performance with an operating frequency band of 6.0GHz-15.0GHz, insertion loss (IL) less than 2dB, input-output return loss (RL) greater than 10dB, and two-port isolation greater than 15dB. Attached Figure Description

[0012] Figure 1This is a schematic diagram illustrating the design principle of a compact Wilkinson power divider based on gallium arsenide IPD technology proposed in this invention. Figure 2 This is a schematic diagram illustrating the working principle of a compact Wilkinson power divider based on gallium arsenide IPD technology proposed in this invention. Figure 3 This is a layout of a compact Wilkinson power divider based on gallium arsenide IPD technology proposed in this invention. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0014] Reference Figure 1-3 A compact Wilkinson power divider based on gallium arsenide IPD technology includes: an input port Port1, an output port Port2 and an output port Port3. A first radio frequency signal component is connected between the input port Port1 and the output port Port2, and a second radio frequency signal component is connected between the input port Port1 and the output port Port3. The first radio frequency signal component and the second radio frequency signal component have the same structure and are connected in parallel. The first and second radio frequency signal components both include a first transmission line unit connected to the input port Port1. The first transmission line unit consists of a π-shaped circuit composed of inductor L1, capacitor C1, inductor L2, and capacitor C2. One end of inductor L1 is connected to capacitor C1, and the other end of inductor L1 is grounded. One end of inductor L2 and capacitor C2 connected in parallel is connected to capacitor C1, and the other end of inductor L2 and capacitor C2 connected in parallel is grounded. One end of capacitor L1 is also connected to inductor L3, and inductor L3... The other end is connected to output port Port2 and output port Port3 respectively through the second transmission line unit. Specifically, the second transmission line unit consists of capacitor C3 (number 3), inductor L4 (number 4), and capacitor C4 (number 4). One end of capacitor C3 is connected to inductor L3 (number 3). Inductor L4 (number 4) and capacitor C4 (number 4) are connected in parallel. One end of the parallel connection of inductor L4 (number 4) and capacitor C4 (number 4) is connected to capacitor C3 (number 3), and the other end of the parallel connection of inductor L4 (number 4) and capacitor C4 (number 4) is grounded. One end of each of the two capacitors C3 (number 3) is connected to output port Port2 and output port Port3 respectively.

[0015] The two sets of first transmission line units and second transmission line units are connected by an isolation resistor unit. Furthermore, a first node a is provided between capacitor C1 and inductor L3 in the two sets of first transmission line units, a second node b is provided between inductor L3 and capacitor C3, and a third node c is provided between capacitor C3 and output port Port2 and output port Port3 in the two sets of second transmission line units. The isolation resistor unit includes inductor L5 connected between the two first nodes a, isolation resistor R1 connected between the two second nodes b, and isolation resistor R2, inductor L6 and isolation resistor R3 connected between the two third nodes c respectively.

[0016] This compact Wilkinson power divider uses gallium arsenide as a substrate and operates in the frequency band of 6.0GHz-15.0GHz. The compact Wilkinson power divider has an insertion loss of less than 2dB, an input-output return loss of more than 10dB, and an isolation of more than 15dB. It uses miniaturized and low-power lumped components to divide one RF signal into two RF signals in a certain equal manner, which is used for the miniaturization and domestic substitution of RF devices.

[0017] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A compact Wilkinson power divider based on gallium arsenide IPD technology, characterized in that, include: The device includes an input port Port1, an output port Port2, and an output port Port3. A first radio frequency (RF) signal component is connected between the input port Port1 and the output port Port2, and a second RF signal component is connected between the input port Port1 and the output port Port3. The first RF signal component and the second RF signal component have the same structure and are connected in parallel. Both the first and second radio frequency signal components include a first transmission line unit connected to the input port Port1. The first transmission line unit consists of a π-shaped circuit composed of an inductor L1, a capacitor C1, an inductor L2, and a capacitor C2. One end of the inductor L1 is connected to the capacitor C1, and the other end of the inductor L1 is grounded. One end of the parallel connection of the inductor L2 and the capacitor C2 is connected to the capacitor C1, and the other end of the parallel connection of the inductor L2 and the capacitor C2 is grounded. One end of the capacitor is also connected to an inductor L3, and the other end of the inductor L3 is connected to the output port Port2 and the output port Port3 respectively through the second transmission line unit. The second transmission line unit consists of capacitor C3 (number 3), inductor L4 (number 4), and capacitor C4 (number 4). One end of capacitor C3 is connected to inductor L3. Inductor L4 and capacitor C4 are connected in parallel. One end of the parallel connection of inductor L4 and capacitor C4 is connected to capacitor C3, and the other end of the parallel connection of inductor L4 and capacitor C4 is grounded. One end of each of the two capacitors C3 is connected to output port Port2 and output port Port3, respectively. A first node a is provided between capacitor C1 and inductor L3 in the two sets of the first transmission line units, a second node b is provided between inductor L3 and capacitor C3, and a third node c is provided between capacitor C3 and output port Port2 and output port Port3 in the two sets of the second transmission line units. An isolation resistor unit is provided between the two sets of the first transmission line unit and the second transmission line unit. The isolation resistor unit includes an inductor L5 connected between two first nodes a, an isolation resistor R1 connected between two second nodes b, and an isolation resistor R2, an inductor L6, and an isolation resistor R3 connected between two third nodes c.

2. A compact Wilkinson power divider based on gallium arsenide IPD technology according to claim 1, characterized in that, The compact Wilkinson power divider uses gallium arsenide as a substrate and operates in the frequency band of 6.0 GHz to 15.0 GHz.

3. A compact Wilkinson power divider based on gallium arsenide IPD technology according to claim 1, characterized in that, The compact Wilkinson power divider has an insertion loss of less than 2dB, an input / output return loss of more than 10dB, and an isolation of more than 15dB.

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